RUT286 Powering Options
This chapter contains information on powering options supported by RUT286 routers.
Power socket
The device has a 2 pin power socket and can be powered by a 9-57 VDC power supply unit (PSU). Refer to the image below for the power socket's pinout information:
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If you decide not to use the standard 9 VDC wall adapter and want to power the device from a higher voltage (15-57 VDC), please make sure that you choose a power supply of high quality. Some power supplies can produce voltage peaks significantly higher than the declared output voltage, especially during connection and disconnection.
While the device is designed to accept input voltage of up to 57 VDC peaks, high voltage power supplies can harm the device. If you want to use high voltage power supplies it is recommended to also use additional safety equipment to suppress voltage peaks from the power supply.
Important: If you are using a power supply other than the one included with the device, ensure that it provides at least the same power output (W) as the original power supply. Using a power supply with insufficient power may prevent certain device features from functioning correctly. Refer to the device portfolio page under Power Consumption to verify the required power supply specifications.
Disclaimer: If additional USB devices or peripherals are connected to the device, their power consumption must also be taken into account. In such cases, a higher-capacity power supply may be required to ensure reliable operation of both the device and all connected USB accessories.
Active PoE
The device can be powered by an ethernet cable via the Ethernet (LAN) port
- RUT286 devices support active PoE standard: 802.3af PoE Class 0 (12.94W)
- Working voltage levels: 9–57.0 V
Passive PoE
The device may also be powered by an Ethernet cable via the LAN1 port (16-57 VDC):
(Do not use in other ports!)
| Pin | 10/100 mode B, DC on spares | T568A Color | T568B Color | Pins on plug face (socket is reversed) | |
| 1 | TX+ |  white/green stripe |
 white/orange stripe |
| |
| 2 | TX- |  green solid |
 orange solid | ||
| 3 | RX+ | white/orange stripe |
white/green stripe | ||
| 4 | DC+ | 9-30 VDC |  blue solid |
blue solid | |
| 5 | DC+ | 9-30 VDC |  white/blue stripe |
white/blue stripe | |
| 6 | RX- | orange solid |
green solid | ||
| 7 | DC- |  white/brown stripe |
white/brown stripe | ||
| 8 | DC- |  brown solid |
brown solid | ||
Simultaneous powering
The device can be powered from a power socket and over Ethernet simultaneously. In this case, both PSUs should have similar output voltages. The power socket has higher priority meaning that the device will draw power from the power socket as long as it is available.
When the device is switching from one power source to another it loses power for a fraction of a second and may reboot. The device will function correctly after the reboot.
Ground loops
Do not connect the power supply negative terminal of our device to the chassis or earth exclusively.
This connection could cause ground loops. For example, if the antenna shield and power supply negative terminal are connected to the chassis or earth, it forms a ground loop, therefore unwanted current could flow through a device PCB ground and may cause damage.
